液(ye)(ye)壓(ya)油(you)(you)(you)(you)(you)是液(ye)(ye)體靜力系(xi)統中重要(yao)的要(yao)素，在液(ye)(ye)壓(ya)系(xi)統設計、完成和試車中必須像對待機(ji)器(qi)(qi)元(yuan)件那樣(yang)給予(yu)重視。液(ye)(ye)壓(ya)油(you)(you)(you)(you)(you)也(ye)是位于發動(dong)機(ji)潤滑油(you)(you)(you)(you)(you)之后的第二個(ge)重要(yao)的潤滑油(you)(you)(you)(you)(you)劑(ji)類型，唐山68號抗(kang)磨(mo)液(ye)(ye)壓(ya)油(you)(you)(you)(you)(you)，約占(zhan)潤滑劑(ji)總耗量的15％。，68號抗(kang)磨(mo)液(ye)(ye)壓(ya)油(you)(you)(you)(you)(you)批發地(di)址，液(ye)(ye)壓(ya)油(you)(you)(you)(you)(you)為(wei)(wei)你的設備護駕保航。油(you)(you)(you)(you)(you)的溫度為(wei)(wei)什么會升高(gao)？ ?主要(yao)原(yuan)因有：油(you)(you)(you)(you)(you)量不夠或(huo)(huo)者是油(you)(you)(you)(you)(you)污(wu)染(ran)(ran)。油(you)(you)(you)(you)(you)量不夠多是由設備設計缺陷或(huo)(huo)油(you)(you)(you)(you)(you)泄漏造成的，油(you)(you)(you)(you)(you)污(wu)染(ran)(ran)尤其(qi)是油(you)(you)(you)(you)(you)氧(yang)化污(wu)染(ran)(ran)物(wu)容易造成冷(leng)卻系(xi)統及過濾器(qi)(qi)的堵塞導致油(you)(you)(you)(you)(you)溫升高(gao)。

液(ye)(ye)力(li)傳(chuan)動(dong)(dong)油有(you)幾個牌(pai)號(hao)，其(qi)用(yong)(yong)(yong)途(tu)有(you)什么區別？過去，68號(hao)抗磨液(ye)(ye)壓(ya)油批發(fa)價，我國不(bu)生產這種產品，多以46號(hao)汽輪機油，HL液(ye)(ye)壓(ya)油代用(yong)(yong)(yong)，經常出現(xian)熱車(che)不(bu)上檔和中途(tu)掉檔現(xian)象。近(jin)幾年，國內已生產二個牌(pai)號(hao)，68號(hao)抗磨液(ye)(ye)壓(ya)油供貨商，6號(hao)和8號(hao)，均系企(qi)業標準。6號(hao)，主要(yao)用(yong)(yong)(yong)于(yu)發(fa)動(dong)(dong)機車(che)和載(zai)重汽車(che)的液(ye)(ye)力(li)變矩器。8號(hao)，主要(yao)用(yong)(yong)(yong)于(yu)各種小轎車(che)液(ye)(ye)力(li)自(zi)動(dong)(dong)傳(chuan)動(dong)(dong)系統。合成烴低溫液(ye)(ye)壓(ya)油具有(you)防銹抗磨性能的合成烴油。

液(ye)壓(ya)油(you)的(de)(de)(de)潤滑(hua)性(xing)對三大泵(beng)類減磨效果的(de)(de)(de)順(shun)序(xu)是(shi)(shi)葉(xie)片(pian)泵(beng)>柱(zhu)塞泵(beng)>齒(chi)輪(lun)泵(beng)。故(gu)凡是(shi)(shi)葉(xie)片(pian)泵(beng)為(wei)主油(you)泵(beng)的(de)(de)(de)液(ye)壓(ya)系統不管其壓(ya)力大小(xiao)選(xuan)用HM油(you)為(wei)好。液(ye)壓(ya)系統的(de)(de)(de)精度越高，要求所選(xuan)用的(de)(de)(de)液(ye)壓(ya)油(you)清(qing)潔度也越高，如對有電液(ye)伺服閥(fa)的(de)(de)(de)閉環(huan)液(ye)壓(ya)系統要求用數控(kong)機床液(ye)壓(ya)油(you)，此兩種油(you)可分別用高等級HM和HV液(ye)壓(ya)油(you)代替。試驗表明(ming)：三類泵(beng)對液(ye)壓(ya)油(you)清(qing)潔度要求的(de)(de)(de)順(shun)序(xu)是(shi)(shi)柱(zhu)塞泵(beng)高于齒(chi)輪(lun)泵(beng)與(yu)葉(xie)片(pian)泵(beng)，而在對極壓(ya)性(xing)能的(de)(de)(de)要求順(shun)序(xu)是(shi)(shi)齒(chi)輪(lun)泵(beng)高于柱(zhu)塞泵(beng)與(yu)葉(xie)片(pian)泵(beng)。